1. Unreasonable health of floor blanks
Before the floor is opened, the blanks of the floor shall be treated for health treatment in order to balance the moisture content of the blank, eliminate the stress of the blank and reduce the deformation of the floor. However, due to the unreasonable stacking of the floor blanks in the health-keeping process, the floorboard blank on the outermost side of the board may have a high moisture content on one side (lower side) and a low water content on one side (inside). After the floor is finished, it is often Quality inspectors will not detect problems.
The geometry of the floor can meet the standard requirements. When the floor is used by the user or the floor is left unpacked and placed for a period of time, the floor absorbs water and rebalances. The side with high moisture content absorbs less moisture and the expansion amount is small; the side with low moisture content absorbs more moisture and the amount of swelling is large. Causes the length of the two long sides of the floor to be unequal, resulting in a triangular seam at the end of the floor. In severe cases, the floor will produce a side bend.
The characteristics of triangular health caused by unreasonable health are as follows:
a) After the floor has been installed, there is no triangular seam, which occurs after a period of use;
b) Test the moisture content on both sides of the floor strip with a triangular seam;
c) After the floor is opened, the damp proof membrane has been tightly sealed with waterproof tape.
2. The unilateral expansion caused by the breathability of the damp-proof membrane junction
When the laminate flooring is installed, the joints of the moisture-proof membranes are not adhered with waterproof tape. One side of the floor is above the moisture-proof membrane and one side is connected with the moisture-proof membrane. Since the junction of the moisture-proof membrane is not tightly adhered with a waterproof tape, the intrusion of moisture causes the side of the floor to become longer, and the lengths of the two long sides of the floor are not equal, so that a triangle seam is produced at the end of the floor.
The characteristics of this situation are:
d) There is no seam after installation of the floor, which occurs after a period of use;
e) The water content on both sides of the floor strip is inconsistent, generally differing by more than 2%;
f) After the floor is opened, it can be seen that the moisture-proof membrane is not sticky with waterproof tape.
Such problems occupy a considerable proportion of floor triangle gap complaints. The moisture-proof membrane must be tightly adhered with waterproof tape to ensure airtightness and avoid problems.
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